One Aniemeka Nwani hacked his two younger brothers, Kingsley and Nwayo, to death in Asaba, Delta State on Sunday night.
The Nwani family of Issele-Uku in Aniocha Local Government Area of the state is an independent marketer of petroleum products in Asaba.
The News Agency of Nigeria gathered from a family source on Monday that Aniemeka killed his brothers one of whom was an undergraduate, with a machete.
The source who pleaded anonymity did not give details but said the three brothers and their widowed mother had a family meeting before the tragic incident.
He said the suspect, said to be in his 30s, had been a patient at a psychiatric home in Uselu, Edo.
Their widowed mother, a Permanent Secretary in the Delta civil service, had returned from Canada where the daughter lives two weeks ago, after a medical check-up.
The Police Public Relations Officer in Delta, (DSP) Andrew Aniamaka, confirmed the incident and described it as tragic.
Read the story as shared by a family friend on Facebook,